- diatomaceous earth,
Origin of diatom
Examples from the Web for diatom
It is necessary to avoid any air current which will cause the diatom to fall from the thread.
Thus Pseudocerataulus Kinkeri is a diatom which cannot possibly be seen without the use of a microscope.The Romance of Plant Life|G. F. Scott Elliot
This diatom is often found in abundance in the water supplies of cities.Through a Microscope|Samuel Wells
The diatom itself may be washed in the same way, if it is not too small.
Diatom ooze is the characteristic deposit in high southern latitudes.
Word Origin for diatom
1845, coined from Greek diatomos "cut in two," from diatemnein "to cut through," from dia- "through" (see dia-) + temnein "to cut" (see tome). So called because they typically appear to have been cut in half. Related: Diatomic.